Practice Test

Q1) A Geographic region has the following distinct characteristics
1. Warm and dry climate
2. Mild and wet winter
3. Evergreen oak trees
The above feature are the distinct characteristics of which one of the following regions? Show Answer

Q2) A new type of El-Nino called El-Nino Modoki appeared in the news. In this context, consider the following statements.
1. Normal El-Nino forms in the Central Pacific ocean whereas El-Nino Modoki forms in Eastern Pacific Ocean.
2. Normal EL-Nino results in diminished hurricanes in the Atlantic Ocean, but EL-Nino Modoki results in a greater number of hurricanes with greater frequency
Which of the statement(s) given above is/are correct? Show Answer

Q3) Consider the following statements.
1. In the world the tropical deserts occur along the Western margins of continents within the trade wind belt.
2. In India, the East Himalayan region gets high rainfall from North-East winds.
Which of the statement(s) given above is/are correct? Show Answer

Q4) "Climate is extreme, rainfall is scanty and the people used to be nomadie herders." The above statement best describes which of the following regions? Show Answer

Q5) During a thunderstorm, the thunder in the sky is produced by the
1. meeting of cumunimbus clouds in the sky.
2. lightning that separates the nimbus clouds.
3. violent upward movement of air water particles.
Select the correct answer using the codes given below Show Answer

Q6) For short-term climatic predictions, which one of the following events detected in the last decade, is associated with occasional weak monsoon rains in the Indian subcontinent? Show Answer

Q7) The winds which are also known as Doctor are Show Answer

Q8) If winds have an outwards circular motion in an anti-clockwise direction, these are Show Answer

Q9) Assertion (A) The Mediterranean region receives rainfall during winters.
Reason (R) The Westerlies associated with cyclones bring winter rainfall.
Codes Show Answer

Q10) Assertion (A) Apart from large-scale climate aberration in the Tropics, El-Nino has a disastrous consequence on the fishing industry of Peru.
Reason (R) El-Nino leads to massive displacements of the rainfall bringing droughts over large parts of the normal raining areas and torrential rains to arid regions of the Tropics.
Codes Show Answer

Q11) Which one of the following regions receives the rainfall throughout the year due to westerly winds? Show Answer

Q12) Fohn and Chinook winds are experienced in Show Answer

Q13) Assertion (A) Seas near the equator receive rainfall throughout the year.
Reason (R) High temperature and high humidity near the equator causes convectional rains in most afternoons.
Codes Show Answer

Q14) Which one of the following is the correct sequence of cloud forms in ascending order of their heights from the ground? Show Answer

Q15) Which of the following statements is not true about Taiga type climate? Show Answer

Q16) Assertion (A) equatorial region is an area of sluggish development.
Reason (R) Extreme climate conditions prevail here.
Codes Show Answer

Q17) A cold local wind draining occasionally down the Rhone valley is known as Show Answer

Q18) Consider the following statements
1. Ozone is found mostly in the Stratosphere
2. Ozone layer lies 55 to 75 km above the surface of the Earth
3. Ozone absorbs ultraviolet radiation from the sun
4. Ozone layer has no significance for life on the Earth
Select the correct answer using the codes given below
Show Answer

Q19) Assertion (A) Hot deserts in the trade wind belts occur invariably on the Western side of the continents.
Reason (R) In the tropical belt where the trade winds blow, there are practically no highlands on the Western side of obstruct the moisture-laden winds for causing rainfall.
Codes Show Answer

Q20) Consider the following statements
1. The atmosphere is a thick gaseous envelope which surrounds the Earth from all sides and is attached to the Earth's surface by gravitational force.
2. Atmosphere filters the incoming solar radiation and prevents the ultraviolet solar radiation waves to reach the Earth's surface.
Which of the statement(s) given above is/are true? Show Answer

Q21) Which one is the effect of latent heat is being released after condensation? Show Answer

Q22) Consider the following statements
1. General characteristics of westerlies are largely modified by cyclones and anticyclones.
2. Westerlies are the most dominant wind systems in middle latitudes.
3. Westerlies become more vigorous in the Southern hemisphere.
Select the correct answer using the codes given below Show Answer

Q23) Consider the following
1. Strong winds.
2. Long winter nights.
3. Cloudy sky.
4. Cold dry air.
Which one of the above are the ideal conditions for the formation of temperature inversions? Show Answer

Q24) Identify the correct sequence of the given process regarding rainfall Show Answer

Q25) Most of the weather phenomena take place in troposphere only because Show Answer

Q26) Assertion (A) Cyclone is developed n a region of extremely low pressure of air with steep gradient of pressure.
Reason (R) It has outward spiralling air to low elevation and inward air flowing at the high elevations.
Codes Show Answer

Q27) A relatively small rotating funnel that extends downward from the base of a towering cloud with thunder, lighting and strong gusty wind is known as Show Answer

Q28) The blueness of the sky is mainly due to Show Answer

Q29) Which of the following is not a greenhouse gas? Show Answer

Q30) Which of the following statements about Coriolis force is not correct? Show Answer

Q31) Assertion (A) Areas near the equator receive rainfall throughout the year.
Reason (R) High temperature and high humidity cause conventional rain in most afternoons near the equator.
Codes Show Answer

Q32) Identify the incorrect statement regarding temperature cyclone Show Answer

Q33) Which part of Tropical Cyclone does not receive any rain? Show Answer

Q34) Which of the following statements are correct about the steppe climate
1. Temperate grasslands found in steppe type climate.
2. It is found in the interiors of the continents.
3. It is characterised by high annual range of temperature.
4. The mean annual precipitation ranges between 25 to 75 cm.
Select the correct answer using the codes given below Show Answer

Q35) The winds which provide winter rains in North-Western India are? Show Answer

Q36) Which of the following thermally induced belt is Show Answer

Q37) Consider the following statements
1. Sub-tropical high pressure belt is thermally induced belt.
2. Sub-polar low pressure belt is dynamically induced belt.
Which of the statement(s) given above is/are correct? Show Answer

Q38) Which of the following statements is not true about tropical cyclones? Show Answer

Q39) Thunderstorms originate from Show Answer

Q40) Assertion (A) Reykjavik ( 64 degree N), capital of iceland, has an average January temperature that is practically the same as that of New York city (41 degree N)
Reason (R) Reykjavik lies in proximity of the relatively warm North Atlantic Drift Show Answer

Q41) In what type of climate will the tree Cork Oak ( whose bark is cork) be found) ? Show Answer

Q42) The air that descends on a rain shadow desert is Show Answer

Q43) Consider the following statements
1. In equatorial regions, the year is divided into four main seasons.
2. In mediterranean region, summer receives more rains.
3. In China type climate, rainfall occurs throughout the year.
4. Tropical highlands exhibit vertical zonations of different climates.
Show Answer

Q44) Assertion (A) Coal-based thermal power stations contributes to acid-rain.
Reasons (R) Oxides of carbon are emitted when coal burns. Show Answer

Q45) Which one of the following region is not included in Mediterranean type of climate? Show Answer

Q46) In Koppen's classification, the climate represented by Bwh is Show Answer

Q47) Which of the following statements is correct? Show Answer

Q48) Assertion(A) Conservation is a basic element of environmental planning
Reason (R ) Conservation and development are complementary to each other
Show Answer

Q49) Which of the following is correctly matched? Show Answer

Q50) In a climograph high relative humidity and high wet bulb temperature denotes Show Answer

Q51) Which of the following can be threats to the biodiversity of a geographical area?
1. Global warming
2.Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism
Select the correct answer using the codes given below Show Answer

Q52) Chlorofluorocarbons, known as ozone depleting substance are used
1.in the production of plastic foams
2.in the production of tubeless tyres
3.in cleaning certain electronic components
4. as pressuring agents in aresol cans
Select the correct answer using the codes given below Show Answer

Q53) Which one of the following is not a site for in situ method of conversation of flora? Show Answer

Q54) Regarding carbon credits, which one of the following statements is not correct? Show Answer

Q55) World Environment Conference to discuss global warming was held in 1997 in Show Answer

Q56) Consider the following statement about world climates
1. Amazon basin receive convection rains
2. the central parts of the Northern continents receive heavy rains
3. Equatorial regions receive intermittent rains
4.The maximum daily temperature is recorded in the external part of the equatorial region
Select the correct answer using the codes given below. Show Answer

Q57) Which of the following is not chemical weathering? Show Answer

Q58) Identify the incorrect statement
Show Answer

Q59) Consider the following statements.
1. A great low pressure in center.
2. High speed wind
3. No rainfall
Show Answer

Q60) Between two stations, an aeroplane flies Show Answer

Q61) Which of the following statements is/are true about and ecosystem?
1.Ecosystem comprises both biotic and abiotic components.
2. Solar radiation is the main driving forces of the ecosystem.
3. Ecosystem is closed system.
4.Ecosystem does not have its own productivity
Show Answer

Q62) Which of the following conditions characterize equatorial climates of the world?
1.Cold winter
2. Hot summer
3. Afternoon thunder shower
4. Small diurnal range of temperature Show Answer

Q63) The hot dust - laden wind blowing from Sahara desert to Mediterranean region is called the Show Answer

Q64) A region with summer temperature of 20 degree,winter temperature of - 15 degree, annual rainfall of about 50 cm,mainly in spring and early summer and coniferous vegetation would life in the Show Answer

Q65) Assertion (A) Considering the world's wind system the westerlies normally blow between 40 degree and 60 degree latitudes
Reason ( R ) The flow of air from sun tropical high pressure leads to the formation of mid - latitudinal planetary wind system. Show Answer

Q66) Which one of the following is the correct sequence in terms of descending values of Albedo? Show Answer

Q67) Which one of the following precipitation conditions is not characteristic of frontal rainfall type? Show Answer

Q68) Consider the following statements regarding lapse rate
1. An unsaturated air mass cools at dry adiabatic lapse rate when it rises in the atmosphere
2. The dry adiabatic lapse rate amounts to 1 degree Celsius per 100 m.
3. The wet adiabatic lapse rate may vary between 0.4 degree Celsius and 0.9 degree Celsius per 100m.
Dry adiabatic lapse rate is higher because of the release of latent heat of condensation
Select the correct answer using the codes given below Show Answer

Q69) Consider the following statements.

1) Jet streams are responsible for Western disturbance in india.

2) Polar front jet is related with Rossby waves.

3) Rossby waves are better obeserved in Northern hemisphere than in Southern hemisphere.
Show Answer

Q70) Which one of the following statements is not correct ? Show Answer

Q71) In the context of the inflow of South Westerly monsoon into India, consider the following statements

1) The Arabian sea current merges with the Bay of Bengal current over the Punjab and adjoining Himalayas.

2) Breaks or spells of dry weather are not the characteristic features of south-West monsoon.

Which of the statements given above is/are correct ? Show Answer

Q72) Which of the following conditions are associated with EL-Nino phenomena? Show Answer

Q73) The temperature of Thiruvananthapuram is lower than that of Mumbai in may and higher than that of Mumbai in January, because Show Answer

Q74) Assertion (A) Anticyclonic conditions are formed in winter season, when atmospheric pressure is high and air temperature are low.

Reason (R) Winter rainfall in northern India causes development of anticyclonic conditions with low temperatures.
Show Answer

Q75) Assertion (A) Air, water and land surrounding us constitute our environment and influence us indirectly.

Reason (R) We too have an influence on our environment due to overuse or over exploitation of resources. Show Answer

Q76) Consider the following statements

1) Environment is of three types, which influence the personality of an individual

2) Biotic environment is the necessary nutrients elements provider for the living beings.

3) Biotic environment includes te plants, trees and micro organism like bacteria and fungi

Which of the above statements is/are correct ? Show Answer

Q77) Assertion (A) All the organisms work to form social groups at several levels, this results in the formation of social environment

Reason (R) Man claims to be most skilled and civilised of all the organism, this is the reason why his social organisation is mosty systematic. Show Answer

Q78) Consider the following statements
1) The changes in the Earth's crust as a result of different processes is called weathering.
2) Chemical weathering is faster and complex process.
3) Sedimentary rocks are formed due to accumulation and consolidation of material brought by wind and water.
Which of the above statements is/are correct ? Show Answer

Q79) Assertion (A) Most cities of the developing countries are heavily multiple polluted.

Reason (R) Unequal developing of country side, lack of planning and unawareness towards pollution is the main reason for the pollution of developing country cities.
Show Answer

Q80) Earth's climate Show Answer

Q81) The Intergovernmental Panel on Climate Change Show Answer

Q82) Which of the following statements is/are correct ?

1) African Bat Biodiversity Project is funded by a National Geographical / Waitt grant; researcher study the importance of ecosystems to threatened and forest-restricted bat species.

2) Thousands of people consume fish form Washinton, DC's highly polluted Anacostia, River, despite safety warnings.

3) As aquifers are pumped out around the world, the water ultimately makes it to the oceans.

Select the correct answer using the code given below Show Answer

Q83) As carbon dioxide in the atmosphere has increased, in such manner how much has the acidity in the oceanic waters have increased ? Show Answer

Q84) Acid rain is formed due to contribution from the following pair of glasses Show Answer

Q85) Most serious environmental effect posed by hazardous waste is Show Answer

Q86) Which of the following is not a primary contribute to the greenhouse effect ? Show Answer

Q87) The headquarters of International Whaling Commission is located at Show Answer

Q88) Increased defoliation in plants is caused by Show Answer

Q89) Which of the following gases has an important role in maintaining atmospheric temperature ? Show Answer

Q90) National Biodiversity Authority is located at Show Answer

Q91) Which of the following statements is/are are correct ?

1) Cartagena protocol is a regulation on transboundry movement on the biosafety of handling and use of Living Modified Organism (LMO's)

2) Stockholm convention is to protect human health and the persistent organic environment from persistent organic substances. Show Answer

Q92) The atmosphere around Earth is warmed because

Show Answer

Q93) Which of the following green house gases concentrations have increased the most since 1750 ? Show Answer

Q94) Which among the following greenhouse gas has the highest radiative forces ? Show Answer

Q95) Recent evidence from polar ice cone analysis shows that carbon dioxide levels have never exceeded .... ppm on the last several hundred thousand years. Show Answer

Q96) Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere but a lot of it does not remain in the lower atmosphere because of

1) Its escape into outer atmosphere.

2) The photosynthesis by phytoplankton in the oceans.

3) The trapping of air in the polar ice caps

Which of the statements given above is/are correct ? Show Answer

Q97)
Regarding carbon credits, which one of the following statements is not correct Show Answer

Q98) Consider the following

1) Oxides of hydrogen

2) Oxides of Nitrogen

3) Oxides of sulphur

Which of the above cause/causes and rain ? Show Answer

Q99) The United Nations Framework Convention on Climate Change (UNFCCC) is an International treaty drawn at Show Answer

Q100) Consider the following

1) Soot

2) Sulphure hexafluoride

3) Water vapour

Which of the above contributed to warming up of atmosphere ? Show Answer

Q101) Which one of the following union ministries implement the cantagena protocol on biosafety ? Show Answer

Q102) Concept of carbon credit originated from which of the following ? Show Answer

Q103) Consider the following statements about Kyoto Protocol came into force in the year 2005

1) Kyoto Protocol deals primarily with the depletion of ozone layer.

2) Methane as a greenhouse gas is more harmful than carbon dioxide.

Which of the above statements is/are correct ? Show Answer

Q104) The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs
Show Answer

Q105) Consider the following statements chloroflouro carbon, known as ozone depleting substances, are used

1) In the production of plastic foams.

2) In the production of tubeless tyres.

3) In cleaning certain electronic components.

4) As pressuring agents in aerosol cans.

Which of the statements given above is / are correct? Show Answer

Q106) Which of the following has been declining globally over the past several decades ? Show Answer

Q107) In the movement toward sustainability is Show Answer

Q108) What cause wind to deflect toward left in the Southern Hemisphere?
Show Answer

Q109) Sun's halo is produced by the refraction of light Show Answer

Q110) The correct sequence of different layers of the atmosphere from the surface of the earth upwards is Show Answer

Q111) Which of the following weather conditions is indicated by a sudden fall in barometer reading? Show Answer

Q112) Willy is Show Answer

Q113) Which among the following represents the correct sequence in increasing height, of different types of cloud formation? Show Answer

Q114) Which of following clouds are more commonly formed in the equatorial rainforests ? Show Answer

Q115) The tropical cyclones do not occur close to the equator because of Show Answer

Q116) The general weather associated with an anticyclone is Show Answer

Q117) Which of the following has least salinity? Show Answer

Q118) The layer in the ocean bottom where the maximum vertical temperature gradient occurs is Show Answer

Q119) As per Ferrel's law Show Answer

Q120) 'Halo' is associated with Show Answer

Q121) In aeroplanes, the atmospheric pressure is measured with Show Answer

Q122) Spring tides occur when Show Answer

Q123) Which of the following statements is not true of Trade Winds? Show Answer

Q124) Perpendicular rays are usually more heating than oblique rays. Therefore, south-facing slopes are warmer than north-facing slopes in the summer. Show Answer

Q125) The water content in the atmosphere Show Answer

Q126) Which of the following is wrong;y matched? Show Answer

Q127) Some large lakes in temperate latitudes have a moderating influence upon the climate of adjacent land surfaces. Such an influence may develop when Show Answer

Q128) What helps to maintain the heat budget on the surface of the earth? Show Answer

Q129) Compared to other slope sin the northern hemisphere which is the warmest? Show Answer

Q130) When can one record the lowest temperature of air? Show Answer

Q131) Which one of the following is not a form of precipitations? Show Answer

Q132) Agents of fog formation do not includes Show Answer

Q133) What causes snowfall? Show Answer

Q134) Heat gain through insolation and heat loss through terrestrial radiation are equal approximately at which latitude? Show Answer

Q135) Any types of rainfall has the following aspect/s Show Answer

Q136) Which of the following is the annual precipitation of an area? Show Answer

Q137) Which of the following connects the ocean floor level with the continental level? Show Answer

Q138) Although hot desert have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sides, flat-floored valleys called Show Answer

Q139) All of the following types of climates occur in the southern hemisphere expect Show Answer

Q140) A hot dry summer, mild winter with moderate rainfall and ample sunshine characterize the __Climate. Show Answer

Q141) Seasonal contracts are maximum in Show Answer

Q142) Which of the following factors is most important for determining the climate of a place? Show Answer

Q143) Atmosphere with excess of carbon dioxide as a result of pollution could result in Show Answer

Q144) Fog formed along the sea coast are due to Show Answer

Q145) The density of air is normally ______at higher attitude Show Answer

Q146) The difference in the time per degree longitude between any two places on the globe is Show Answer

Q147) The heaviest rainfall is recorded in Show Answer

Q148) Upto a height of 50 km from Earth, the atmosphere is composed of Show Answer

Q149) A person planning to travel by the shortest route should follow Show Answer

Q150) The order of the layers in the atmosphere, upward from below is, Show Answer

Q151) The most prominent gases in the atmosphere , in terms of volume. are Show Answer

Q152) Most of the weather phenomena take place in the Show Answer

Q153) Which layer of the atmosphere maintains an almost uniform horizontal temperature? Show Answer

Q154) The thickness of the troposphere increases in Show Answer

Q155) Which gas in the atmosphere absorbs ultraviolet rays? Show Answer

Q156) Fall in air temperature with increasing elevation is known as Show Answer

Q157) Where is the doldrums belt located? Show Answer

Q158) What is the name given to winds blowing from subtropical high pressure regions, to the equator? Show Answer

Q159) 'Horse latitudes' is the term applied to the Show Answer

Q160) The stratosphere is said to be ideal for flying jet aircraft. This is because Show Answer

Q161) The velocity of winds is governed by Show Answer

Q162) Over which region is the temperature the highest near the tropopause? Show Answer

Q163) Which of the following are not a planetary wind? Show Answer

Q164) 'How much pressure is exerted by the atmosphere at sea level? Show Answer

Q165) The water content in the atmosphere Show Answer

Q166) Farrel's law is concerned with the Show Answer

Q167) Blizzards are characteristic of _____region. Show Answer

Q168) What is the important of ozone in the atmosphere? Show Answer

Q169) What is a cyclone? Show Answer

Q170) Which one is an anticyclone? Show Answer

Q171) An upper air wind system with very high velocities in certain parts of the atmosphere is called Show Answer

Q172) What is a tornado? Show Answer

Q173) Snowfall occurs when Show Answer

Q174) The process of change of state of water from solid directly into vapour is called Show Answer

Q175) When humidity is expressed as percentage it is called Show Answer

Q176) What is the vapour pressure? Show Answer

Q177) What is measured by the sling psychrometer ? Show Answer

Q178) What is stated terms of grams of water vapour per kilogram of moist air? Show Answer

Q179) Amount of water vapour (grams ) in given volume of air (cubic metre) is known as Show Answer

Q180) The temperature at which an air parcel will become saturated with the present amount of water vapour is called Show Answer

Q181) What is meant by the term 'cirrus' ? Show Answer

Q182) What is fog? Show Answer

Q183) Hail consist of Show Answer

Q184) Rainfall caused due to the presence of mountains in the way of winds is called Show Answer

Q185) The leeward side of a mountain which does not receive rain is known as the Show Answer

Q186) Dew is caused when Show Answer

Q187) Which of the pedogenic regimes is associated with hot, dry climates
? Show Answer

Q188) With what type of climate is the pedogenic regime of podzolisation associated Show Answer

Q189) What does a barometer indicate? Show Answer

Q190) What is difference between a gulf and a bay? Show Answer

Q191) What do you call a narrow neck of land that connects two larger landmasses? Show Answer

Q192) Approximately when does the South-West Monsoon begin in india? Show Answer

Q193) What is the name given to the widened river mouth found at the point a river enters the sea? Show Answer

Q194) What is significant about the town of Greenwich? Show Answer

Q195) What is a typhoon called in the Atlanesia? Show Answer

Q196) Daily weather map showing isobars is an example of: Show Answer

Q197) Which of the following statements is/are correct? Show Answer

Q198) Which one of the following layers of the atmosphere is responsible for the deflection of radios waves? Show Answer

Q199) Which of the following is produced by the rapid ascent of moist air? Show Answer

Q200) Which one of the following back more sunlight as compared to other three? Show Answer

Q201) National Institute of Oceanography is located in: Show Answer

Q202) Of the main constituents, which of the following have great influence in earth's climatic conditions? Show Answer

Q203) Which one of the following conditions cause rainfall? Show Answer

Q204) Winter rains in North and North-West India are generally associated with the phenomenon of : Show Answer

Q205) Which one of the following characteristics is NOT found in the Mediterranean climate? Show Answer

Q206) The hot dry local winds that blow on the eastern side of the Alps Mountain are known as: Show Answer

Q207) Which one among the following is a high cloud? Show Answer

Q208) A type of rainfall which occurs when wind rises up along a hill or mountain barriers is called : Show Answer

Q209) Which of the following Latitudinal extents related to ' horse latitudes'? Show Answer

Q210) Which one of the following factors does not affect atmospheric pressure ? Show Answer

Q211) Which one of the following is not correctly matched? Show Answer

Q212) Which region of the Earth's surface is called doldrums? Show Answer

Q213) Which one of the following is a low cloud? Show Answer

Q214) Injurious ultraviolet radiations are mostly prevented from reaching the land surface as these are absorbed mostly by which one of the following? Show Answer

Q215) What is the term used to denote the temperature at which the water vapur present in the atmosphere is sufficient to saturate? Show Answer

Q216) The earth's reflectivity of solar radiation, termed albedo , is highest in which one of the following? Show Answer

Q217) What are the Westerlies? Show Answer

Q218) El Nino current appears along the coast of which one of the following? Show Answer

Q219) Which one of the following regions on the surface of Earth has Horse Latitudes? Show Answer

Q220) Which one of the following is produced by rain water action? Show Answer

Q221) What is the general direction of cyclones formed in the Bay of Bengal ? Show Answer

Q222) Which one among the following statements relating to an anticyclone is correct? Show Answer

Q223) The phenomenon of ' trade winds' takes place due to Show Answer

Q224) Rain shadow effect is associate with Show Answer

Q225) The intensity of insolation depends on Show Answer

Q226) Doldrums is a Show Answer

Q227) Which of the following factors alter wind direction and speed?
1) Pressure gradient force
2) Coriolis forces
3) Frictional forces
Select the correct answer from the codes given below: Show Answer

Q228) Consider the following statements regarding the cumulonimbus clouds
1) The cloud is also referred to as thunder clouds.
2) This brings convectional rain.
3) This is frequently seen in tropical afternoons.
4) These are woolly, bumpy clouds arranged in layers appearing like waves in blue sky.
Which of the above statements is/are not correct? Show Answer

Q229) Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why?
1) Southern hemisphere has less landmass as compared to northern hemisphere.
2) Coriolis force is higher in southern hemisphere as compared to northern hemisphere.
Which of the statements given is/are correct? Show Answer

Q230) The jet aircrafts fly very easily and smoothly in the lower stratosphere, what could be the appropriate explanation?
1) There are no clouds or water vapour in the lower stratosphere,
2) There are no vertical winds in the lower stratosphere,
Which of the statements given above is/are correct in this context? Show Answer

Q231) Normally , the temperature decreases with the increase in height from the Earth's surface, because
1) the atmosphere can be heated upwards only from the Earth's surface.
2) there is more moisture in the upper atmosphere.
3) the air is less dense in the upper atmosphere
Select the correct answer using the codes given below:
Show Answer

Q232) A layer in the Earth's atmosphere called ionosphere facilities radio communication? Why?
1) The presence of ozone causes the reflection of radio waves to earth.
2) Radio waves have a very long wavelength.
Which of the statements given above is/are correct? Show Answer

Q233) Consider the following climatic and geographical phenomena:
1) Condensation
2) High temperature and humidity
3) Orography
4) Vertical wind
Thunder cloud development is due to which of these phenomena? Show Answer

Q234) Consider the following statements about the 'Roaring Forties':
1) They blow uninterrupted in the northern and southern Hemispheres.
2) They blow with great strength and constancy.
3) Their direction is generally from north-west to east in the Southern Hemisphere.
4) Overcast skies, rain and raw weather are generally associated with them.
Which of these statements are correct? Show Answer

Q235) Arrange the following concentric gas layers in the order in which they could be observed from the earth in Heterosphere ?
1) Nitrogen
2) Helium
3) Oxygen
4) Hydrogen
Select the correct answer from the codes given below:
Show Answer

Q236) Which of the following are correct?
1) The evaporation leads to the cooling of adjacent air.
2) The basis for all factors which favors evaporation is the vapour at a water surface.
3) The specific humidity of air remains constant when there is no gain or loss of moisture, through he absolute humidity changes.
4) The dew-point temperature is the temperature at which condensation starts if the air is sufficiently cooled.
Select the correct answer from the codes given below: Show Answer

Q237) Arrange the following seas in the descending order of their area:
1) Californian Sea
2) Okhotsk Sea
3) Bering Sea
4) Red Sea
Select the correct answer from the codes given below : Show Answer

Q238) Consider the following statement :
1) The vegetation in the Kalahari desert is nourished by the dense fogs of that region.
2) Dew and mist in winter nourished wheat crops in parts of central India.
Which of the above statement is/are correct? Show Answer

Q239) Consider the following statement :
1) Clouds generally reflects some of the sunlight in different directions and the rest is absorbed.
2) Nearly 90% of the water vapour lies below 12 km of the atmosphere.
3) Water vapour does not exceed 3 % to 4 % of total volume of air.
4) Nitrogen serves mainly as dilutant and dissolver.
Which of the above statements is/are not correct? Show Answer

Q240) Which of the following is/are correct?
1) Specific humidity is not affected by changes in temperature and pressure.
2) Change in temperature and pressure cause changes in the absolute humidity.
3) A decrease in temperature cause increase in relative humidity
Select the correct answer from the codes given below: Show Answer

Q241) Which of the following is/are correct?
1) The Northern Pacific is the deepest part of the Ocean,
2) The South-West Pacific is devoid of marginal seas.
3) The South-West Pacific has broad submarine ridges and plateaus.
4) The ocean floor of the Pacific Ocean is fairly uniform with broad rises and depressions.
Select the correct answer from the codes given below : Show Answer

Q242) Atmospheric pressure depends on
1) altitude
2) temperature
3) earth rotation
4) moon's pull
Show Answer

Q243) Which of the following characteristics the Fohn?
1) it is warm
2) it is humid
3) it is common in the valleys of the northern Alps
4) it blows in winter Show Answer

Q244) The absence of which among the following causes the temperature of the atmosphere to decrease with ascent along with decreasing density of air?
1) Vegetation
2) Water
3) Carbon dioxide
4) Oxygen
5) Nitrogen Show Answer

Q245) Transfer of surplus heat from the lower latitudes to higher latitudes is done by
1) ocean currents
2) planetary winds
3) tides
4) waves Show Answer

Q246) Land masses are heated and cooled much faster than water bodies. Identify the true statements in this regard.
1) Land gets heated by conduction
2) Water has a height specific heat
3) Only the surface layers of water are heated
4) Water gets heated by convection
Show Answer

Q247) Which of the following are true with regard to temperature control of the atmosphere of a given place?
1) The major temperature contrasts on earth's surface are between land masses and oceans
2) During night, the water surface cools more rapidly than the land surface
3) Temperature generally decreases with latitude on either side off the equator
4) Temperature rises to a maximum during summer and falls to a minimum during winter.
Show Answer

Q248) Which of the following places are favorably influenced by the Trade winds?
1) West Indies
2) Brazil
3) Mexico
4) Madagascar
Show Answer

Q249) Which of the following places are favorably influenced by the West-erlies?
1) New Zealand
2) Guiana
3) South Chile
4) Florida
Show Answer

Q250) Which factor do not affect the amount of insolation?
1) Solar constant
2) Surface temperature
3) Length of day
4) Rotation of the earth
Show Answer

Q251) Which ones are wrongly matched?
1) Typhoons-China Sea
2) Hurricanes-Indian Ocean
3) Cyclone-West Indies
4) Tornadoes-Australia Show Answer

Q252) An anti-cyclone
1) is an intense low pressure system
2) has winds blowing clockwise in the southern hemisphere.
3) is accompanied by clear and settled weather conditions.
4) is more extensive, slower-moving and more persistent than a depression, Show Answer

Q253) Consider the following statement :
1) In the coastal regions, the land breeze blows over to the sea during night
2) In the coastal regions, during night , the air over the sea is warmer than the air over land
Which of the statements given above is/are correct? Show Answer

Q254) Consider the following statement :
1) Troposphere varies in its thickness between equator and poles.
2) Stratosphere does not experience Normal Lapse Rate
3) Ozone layer occurs in the Mesosphere.
4) Ionosphere lies between stratosphere and Mesosphere.
Which of these statements are correct? Show Answer

Q255) Consider the following statements:
1) Cyclonic storms are produced in the sub-polar low pressure belt.
2) In the equatorial low pressure belt, the surface winds are generally absent.
Which of the statements given abvoe is/are correct? Show Answer

Q256) Consider the following statements with reference to doldrums :
1) Doldrums comprise the equatorial belt of low atmospheric pressure.
2) The trade winds converge at doldrums.
3) There is strong upward movement of air in doldrums.
4 ) Doldrums are characterized by turbulent weather .
Which of the statement given above are correct? Show Answer

Q257) Consider the following statement :
1) Rainfall in the doldrums is of convectional type.
2) In China type climate, rainfall occurs throughout the year,
Which of the statements given above is/are correct? Show Answer

Q258) Consider the following statement :
1) Half the water vapour in the air in atmosphere lies below an altitude of 1000 m.
2) The amount of precipitable water in the atmosphere increases from the equator to the poles.
Which of the statements given above is/are correct? Show Answer

Q259) Consider the following statement in respect of temperate cyclones:
1) They rise in the belt of trade winds
2) They move from west to east.
Which of the statements given above is/are correct? Show Answer

Q260) Consider the following statement :
1) The approach of a cyclone is characterized by a rise in baromenic reading.
2) In the cyclones of the southern hemisphere, the winds circulate in anticlockwise direction.
Which of the statement given above is/are correct Show Answer

Q261) Consider the following statement :
1) In tropical grassland regions, rainfall mainly occurs in the short summer season with a long dry season.
2) In Mediterranean region, the winter rainfall is cause by the passage of cyclones in the westerly wind belt which lies over this area.
Which of the statements given above is/are correct? Show Answer

Q262) Which of the following statements characterize convectional rainfall?
1) It occurs daily in the afternoon in the equatorial regions.
2) It is of very short duration.
3) It occurs through Cumulonimbus clouds.
Select the correct answer using the codes given below: Show Answer

Q263) Which of the following statements characterize the anticyclones?
1) Anticyclones are low pressure system.
2) They are characterized by divergent wind circulation.
3) They are indicative of dry weather conditions.
Select the correct answer using the codes given below? Show Answer

Q264) Consider the following statement :
1) In a cyclone, the direction of wind flow is counter clockwise in the northern hemisphere
2) The tropical cyclone fades away when it reaches land because there is no large supply of warm moist air
Which of the statement given above is/are correct ?
Show Answer

Q265) Which of the following statement is/are correct?
1) Cyclone is a low pressure system.
2) The wind movement is clockwise in the cyclone of northern hemisphere.
Select the correct answer using the codes given below: Show Answer

Q266) Assertion : Wind patterns are clockwise in the Northern Hemisphere and anti-clockwise in the Southern Hemisphere.
Reason :The directions of wind patterns in the Northern and the Southern Hemisphere are governed by the Coriolis effect. Show Answer

Q267) Assertion : Areas near the equator receive rainfall throughout the year.
Reason : High temperatures and high humidity cause convectional rain in most afternoons near the equator. Show Answer

Q268) Assertion : Tropical cyclones do not develop close to the equator.
Reason : A week Coriolis effect retards development of circular iar motion. Show Answer

Q269) Assertion : 60-65 degree latitudes in both the hemisphere have a low pressure belt instead of high pressure.
Reason : The low pressure areas are permanent over oceans rather than on land. Show Answer

Q270) Assertion : The surface winds spiral inwards upon centre of the cyclone.
Reason : Air descends in the centre of the cyclone. Show Answer

Q271) Assertion : The amount of moisture in the atmosphere is related to latitude.
Reason : The capacity to hold moisture in the form of water vapour is related to temperature . Show Answer

Q272) Assertion : Areas lying within five to eight degree latitude on either side of the equator receive rainfall throughout the year.
Reason : High temperatures and high humidity cause convectional rain to fall mostly in the afternoons near the equator. Show Answer

Q273) Assertion :Thickness of the atmosphere is maximum over the Equator.
Reason : High insolation and strong convection currents occur over the Equator. Show Answer

Q274) Assertion : Isotherms are closely placed in the Northern Hemisphere.
Reason : There is much greater concentration of landmass in the Northern Hemisphere Show Answer

Q275) Assertion : In the Troposphere, temperature decrease with increase in altitude.
Reason : The Tropospheric layer primarily gets heated by the shortwave terrestrial radiation. Show Answer

Q276) Assertion : A warm airmass moving over a cold surface experiences convective instability
Reason :There would be an inversion of temperature in the warm air mass. Show Answer

Q277) Assertion : In the higher layer of atmosphere where their is pure, there is no condensation through the relative humidity exceeds 100 %
Reason : Water vapour needs a condensation nuclei or hygroscopic particles to condense. Show Answer

Q278) Assertion : The eastern coast of India is affected by tropical cyclones more than western coast
Reason : Tropical cyclones originate only in the Bay of Bengal. Show Answer

Q279) Assertion : Situated on the same latitude, hilly areas have relatively lower temperature than that in the plains.
Reason : Temperature decreases with increasing altitude at the rate of 1 degree C for every 300. Show Answer

Q280) Assertion : Isotherms have a general east-west trend around the globe.
Reason : All centres of high and low temperature occur over landmasses, Show Answer

Q281) Assertion : Atmospheric pressure falls continuously from the North and South poles towards the Equator.
Reason : A rise in temperature lowers the atmospheric pressure Show Answer

Q282) Assertion : Equatorial region receives rainfall throughout the year.
Reason : Equatorial regions is low pressure belt . Show Answer

Q283) Assertion : When rain falls on limestone rock, calcium bicarbonate is formed.
Reason : Rain water absorbs carbn dioxide from the atmosphere. Show Answer

Q284) Assertion : During the cold season, the winds are easterly or north-easterly down the Ganga valley
Reason : The topography of the region influence the wind direction Show Answer

Q285) Assertion : In the atmosphere, the air near the ground is warmer than in its upper layers.
Reason : The higher content of oxygen in the air near the ground absorbs a part of terrestrial radiation leading to higher temperature. Show Answer

Q286) Assertion : The tidal effect of Moon on the surface of Earth is less than that of Sun .
Reason : Moon's gravitational pull at Earth's surface is less compared to Sun's gravitational pull. Show Answer

Q287) Which of the following was the warmest year? Show Answer

Q288) Which of the following is true about the global warming? Show Answer

Q289) Temperature changes vary over the globe. Consider the following facts about the same
1. Since 1979, land temperatures have increased about twice as fast as ocean temperatures (0.25 °C per decade against 0.13 °C per decade).
2. Ocean temperatures increase more slowly than land temperatures because of the larger effective heat capacity of the oceans and because the ocean loses more heat by evaporation.
Select the correct answer using the code given below.
Show Answer

Q290) Consider the following facts about the climate change
1. The thermal inertia of the oceans and slow responses of other indirect effects mean that climate can take centuries or longer to adjust to changes in forcing.
2. even if greenhouse gases were stabilized at 2000 levels, a further warming of about 0.5 °C (0.9 °F) would still occur.
Which of the above statement/s is /are correct? Show Answer

Q291) Which of the following scientists is associated with the investigation of greenhouse effect
a. Joseph Fourier
b. John Tyndall
c. Svante Arrhenius
d. Guy Stewart Callendar
Select the correct answer using the code given below.
Show Answer

Q292) Consider the following facts about growing climate change
1. Over the last three decades of the 20th century, gross domestic product per capita and population growth were the main drivers of increases in greenhouse gas emissions.
2. CO2 emissions are continuing to rise due to the burning of fossil fuels and land-use change
Which of the above statement/are correct? Show Answer

Q293) Observed and expected environmental effects
1. Glaciers have been retreating since the early 1800s.
2. In the 1950s measurements began that allow the monitoring of glacial mass balance
3. Projections of global mean sea level rise by Parris and others.
Select the correct answer using the code given below. Show Answer

Q294) Global warming has been detected in a number of natural systems. Some of these changes are described in the section on observed temperature changes which include-
1. sea level rise
2. changes in climate extremes
3. declines in Arctic sea ice extent
4. glacier retreat
Select the correct answer using the code given below.
Show Answer

Q295) Consider the following facts with regard to effects of global warming
1. Increases in atmospheric CO2 concentrations have led to an increase in ocean acidity.
2. Dissolved CO2 increases ocean acidity, which is measured by lower pH values.
3. Between 1750 to 2000, surface-ocean pH has decreased by ~0.1, from ~8.2 to ~8.1.
4. Surface-ocean pH has probably not been below ~8.1 during the past 2 million years.
5. Projections suggest that surface-ocean pH could decrease by an additional 0.3-0.4 units by 2100.
Select the correct answer using the code given below. Show Answer

Q296) Consider the following statement/s with reference to global warming-
1. On the timescale of centuries to millennia, the magnitude of global warming will be determined primarily by anthropogenic CO2 emissions.
2. This is due to CO2's very long lifetime in the atmosphere.
3. Stabilizing global average temperature would require reductions in anthropogenic CO2 emissions.
Which of the above mentioned fact is/are correct? Show Answer

Q297) Climate change could result in global, large-scale changes in natural and social systems which include Show Answer

Q298) Select the answer using the Codes given below: Show Answer

Q299) The IPCC defines mitigation as activities that Show Answer

Q300) Which of the following is true? Show Answer

Q301) Geomorphology seeks Show Answer

Q302) The independent variables that control landscape are Show Answer

Q303) Consider the agents of Exogenic processes
1. weathering and erosion
2. hydrologic cycle
3. fluvial processes
4. glaciation
5. aeolian activity
6. biological activity and man
7. waves
Which of the above-statement/s is/are responsible for exogenic processes Show Answer

Q304) Consider the following facts
1. Lithology affects how much energy or time is required to produce change.
2. Structure determines the grain of the topography of the land
Which of the above statement/s is/are correct? Show Answer

Q305) The Endogenetic Forces Show Answer

Q306) Assertion-Greenhouse gases, atmospheric gases that exist to keep our planet warm and prevent warmer air from leaving our planet, are enhanced by industrial processes.
Reason-As human activity such as the burning of fossil fuels and deforestation increases, greenhouse gases such as Carbon Dioxide are released into the air.
Select the answer using the Codes given below: Show Answer

Q307) Consider the following statements
1. Scientific organizations around the world, including the intergovernmental panel on climate change, the inter academy council, and over thirty others, have projected a significant change and future inc
2. Another cause of global warming is land-use changes such as deforestation.
Which of the above statement/s is/are correct? Show Answer

Q308) Another important effect of melting ice caps lies in a changing albedo.
1. Albedo is the ratio of the light reflected by any part of the earth's surface or atmosphere.
2. Since snow has one of the highest albedo level, it reflects sunlight back into space, helping to keep the earth cooler.
3. As it melts, more sunlight is absorbed by the earth's atmosphere and the temperature tends to increase. This further contributes to global warming.
Which of the above statement/s is /are correct Show Answer

Q309) Assertion-As Carbon Dioxide emissions increase, the ocean becomes more acidic.
Reason-This acidification affects everything from an organism's ability to absorb nutrients to changes in chemical equilibrium and therefore natural marine habitats.
Codes: Show Answer

Q310) Consider the following statement/s
1. Global warming enhance the spread of diseases.
2. As northern countries warm, disease-carrying insects migrate north, carrying viruses with them that we have not yet built immunity for.
Which of the above statement/s s/are correct?
Show Answer

Q311) Assertion-Strong shifts in precipitation patterns will ensue as global warming progresses. Some areas of the earth will become wetter, while others will experience heavy droughts.
Reason-Since warmer air brings heavier storms, there will be an increased chance of stronger and more life-threatening storms.
Codes: Show Answer

Q312) Assertion-Projected sea-level rise will greatly affect low-lying coastal areas with large populations in developed and developing countries worldwide.
Reason-the cost of adaptation to a newer climate could result in at least 5% to 10% of gross domestic product.
Codes:
Show Answer

Q313) Assertion-Plants absorb the greenhouse gas Carbon Dioxide (CO2) from the atmosphere for photosynthesis, the conversion of light energy into chemical energy by living organisms.
Reason-Increased forest cover will help plants remove CO2 from the atmosphere and help alleviate global warming.
Codes:
Show Answer

Q314) Consider the following facts about the Greenhouse effect
1. The earth is surrounded by a blanket of gases.
2. This blanket traps energy in the atmosphere, much the same way as glass traps heat inside a greenhouse.
3. This results in an build up of energy, and the overall warming of the atmosphere.
4. The greenhouse effect is a natural process which made life on Earth possible.
Select the correct answer using the code given below. Show Answer

Q315) The main sources of green house gas emissions, particularly carbon dioxide, methane and nitrous oxide, are:
1. the combustion of large amounts of fossil fuels
2. deforestation
Select the correct answer using the code given below. Show Answer

Q316) Which of the following is true about the fall out of climate change due to Global warming
1. Thermal expansion of the water and melting of continental glaciers would cause sea levels to rise, possibly as much as two feet, by the end of next century.
2. Rising temperatures could lead to changes in regional wind systems which would influence global rainfall distribution and lead to the redistribution and frequency of floods, droughts and forest fires.
3. Increased sea temperatures would cause the destruction of coral reefs around the world.
Select the correct answer using the code given below. Show Answer

Q317) Assertion-There is a layer of ozone high up in the atmosphere which shields the Earth from the sun's harmful UV rays, these rays can lead to an increase in skin cancer.
Reason- The ozone is present in very small quantities but it is enough to absorb the UV rays preventing them reaching the surface.
Select the answer using the Codes given below: Show Answer

Q318) Assertion-99 percent of the atmosphere’s weight is found within about 32 kilometers of Earth’s surface.
Reason-Gas molecules at the bottom of the atmosphere are squeezed together by the gases above them.
Select the answer using the Codes given below:
Show Answer

Q319) Half the atmosphere’s weight is Show Answer

Q320) Consider the following statements
1. Air always contains some water vapor.
2. Water vapor enters the air by evaporation from the oceans and from water or plants on land.
3. The amount of water vapor varies with location, season, and time of day.
4. Most of the water vapor is near the surface, and the percentage decreases with height.
Select the correct answer using the code given below. Show Answer

Q321) Consider the following statements
1. Ozone thinning results from the release of gases called chlorofluorocarbons (CFC’s) into the atmosphere.
2. CFC’s are sued as coolants in air conditioners, to clean electronic components, and in making foam products.
3. The chlorine atoms from the CFC’s break down ozone in the presence of sunlight.
4. Ozone measurements since the late 1970’s show a hole in the ozone layer over Antarctica.
Which of the above statement/s is/are correct? Show Answer

Q322) Hot bodies such as the sun radiate their energy mainly in the form of Show Answer

Q323) A pan on a hot stove is heated mainly by Show Answer

Q324) A kettle of water on a hot stove is an example of heating by Show Answer

Q325) On the Fahrenheit scale, the fixed points are labeled Show Answer

Q326) Which of the following is true about Isotherms? Show Answer

Q327) Which of the following is true about Isotherms Shift Show Answer

Q328) What is true about relative humidity? Show Answer

Q329) The instrument which works on the principle that evaporation causes cooling is called Show Answer

Q330) Raindrops form by Show Answer

Q331) Snowfall is measured in Show Answer

Q332) Which of the following make good condensation nuclei. Show Answer

Q333) Which of the following marks the beginning of summer in the northern hemisphere and simultaneously heralds the beginning of winter in the southern hemisphere. Show Answer

Q334) The Seasonal reversal of winds is the typical characteristic of Show Answer

Q335) In the South Atlantic and South Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason? Show Answer

Q336) Consider the following statements-
1. The winds which blow between 30o N and 60o S latitudes throughout the year are known as westerlies.
2. The moist air masses that cause winter rams in North-Western region of India are part of westerlies.
Which of the statements given above is/are correct? Show Answer

Q337) Which one of the following is the best description of the term “ecosystem”? Show Answer

Q338) Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth?
1. Volcanic action
2. Respiration
3. Photosynthesis
4. Decay of organic matter
Select the correct answer using the code given below. Show Answer

Q339) Climate and general circulation of the atmosphere are related to: Show Answer

Q340) Consider the following facts about Polar Cell
1. Sinking air at the poles warms and results in a high pressure over the poles.
2. At the surface, the pole ward moving air gets pulled to the right by the Coriolis force (in the northern hemisphere) forming the polar easterly winds.
Which of the above statement/s is/are true about polar cell? Show Answer

Q341) Consider the following facts about cyclone-
1. Cyclones are centres of low pressure surrounded by closed isobars and having increasing pressure outwards.
2. It has closed air circulation from outside towards the Central low pressure in such a way that air blow inward in anticlockwise in the Northern Hemisphere and clockwise in the S. Hemisphere.
Select the correct answer using the code given below. Show Answer

Q342) Which of the following is type of cyclone? Show Answer

Q343) Terrestrial cloud formation is the result of air in Earth's atmosphere becoming saturated due to Show Answer

Q344) What is true about Tornadoe? Show Answer

Q345) Which of the following can be found as greenhouse gases in Earth's atmosphere?
1. Carbon dioxide (CO2)
2. Methane (CH
3. Nitrous oxide (N
4. Ozone
5. Water Vapours
Select the correct answer using the codes given below. Show Answer

Q346) In an intrinsic semiconductor, the number of free electrons Show Answer

Q347) Consider the following statements with reference to ecosystems-
1. Ecosystems are of solid, liquid and gaseous forms called the non-living.
2. Besides these, there is a fourth sphere consisting of the flora and fauna called the biosphere or the living systems.
3. Between the living and the non-living systems, there are various interactions.
4. Several environmental changes occur on the earth in response to these interactions.
Select the correct answer using the codes given below. Show Answer

Q348) Consider the following statements
1. The millions of plants on this earth form the very basis of survival of all other life forms.
2. It was primarily the plant life of several million years ago that generated the oxygen in the atmosphere for our survival.
3. It is held among the botanists that the destruction of one plant species is like extinguishing 30 animal species.
Select the correct answer using the codes given below. Show Answer

Q349) Energy flow in an ecosystem is: Show Answer

Q350) Due to Corriolis effect, wind in the: Show Answer

Q351) Consider the following statements with regard to the National Air Quality Index launched on October 18, 2014 -
1. National Air Quality Index is a method by which individual air pollution parameters of each pollutant can be translated into a single number or a set of numbers.
2. This (index) will provide the common citizen one colour, one number and one description so that he can understand what is the level of air pollution
3. The scheme may initially kick off in 16 cities, which have automatic air quality monitoring stations
Select the correct answer using the codes given below. Show Answer

Q352) The Montreal Protocol calls for _____ ? Show Answer